Potential difference of between two SCXI 1306 channels

[ruthypoby]

I am performing electrical impedance tomography in my research, which requires potential difference measurements between electrode pairs. I am using the SCXI 1306 module. In the diagram below, the voltage is measured between the electrodes in one channel.

My goal however is to measure the potential difference between different channels – say between channels 1 and 5 as shown below. Would you know if SCXI1306 is capable of performing such measurement?

Thanks in advance for your help!